Anyone who is interested in experimenting with the DPLA—from creating apps that use the library’s metadata to thinking about novel designs to bringing the collection into classrooms—is welcome to attend or participate from afar. The hackfest is not limited to those with programming skills, and we welcome all those with ideas, notions, or the energy to collaborate in envisioning novel uses for the DPLA.

The Center for History and New Media will provide spaces for a group as large as 30 in the main hacking space, with couches, tables, whiteboards, and unlimited coffee. There will also be breakout areas for smaller groups of designers and developers to brainstorm and work. We ask that anyone who would like to attend the hackfest please register in advance via this registration form.

There have been many complaints (e.g. https://bugzilla.wikimedia.org/show_bug.cgi?id=19262) that articles take too long to render. For articles with many citations, the obvious low-hanging fruit is COINS metadata. For example, Muammar Gaddafi takes 28.3 seconds to parse, but with COINS removed, it takes 22.2 seconds.
Nobody ever held a straw poll asking the community "can we please make article parsing 27% slower in order to support a rarely-used metadata feature?" I'm sure that data can be provided in some other way. So I would like to remove it. -- Tim Starling (talk) 06:10, 12 November 2012 (UTC)

Users of Zotero and LibX have raised objections. COinS may be brought back when Wikipedia does some system improvements. If you have any feelings on the matter (COinS are necessary, should be replaced by a better schema, etc.) join the discussion.